A sterile bioabsorbable device made primarily of animal-derived bone or dentin matrix (e.g., bovine, porcine) implanted into the body to provide osteoconductive bone-tissue scaffolds to replace maxillofacial and/or mandibular bone lost through trauma or dental surgery. It is used to fill bone cavities and defects and contains pores that promote the ingrowth of endogenous bone for skeletal reconstruction and/or augmentation. It is typically provided as sterile cancellous blocks, chips, or granules of varying sizes, or mouldable materials.